simpler type checking, simple Unary+ explanation
simpler type checking, simple Unary+ explanation

ollie314/alertify.js,AABoyles/logify.js,slickage/alertify.js,AABoyles/logify.js,FergK/logify.js,alertifyjs/alertify.js,shaneparsons/alertify.js,FergK/logify.js,FutureCensus/logify.js,slickage/alertify.js,FutureCensus/logify.js,ollie314/alertify.js,slickage/alertify.js,shaneparsons/alertify.js,alertifyjs/alertify.js